baber/WOPTO huggingface dataset:
Patent GB-1095375-A (GB)
IPC: F16K31/53
Abstract: 1,095,375. Valves; machinery guards. ACF INDUSTRIES Inc. May 25, 1966, No. 23355/66. Headings F2J and F2V. A shaft 86 for operating the gate member 22 of a valve has its outer extremity sealingly enclosed by a cover 130 screwed on to a tubular member 108 in sealing relation with the valve housing 76 and with a collar 116. The cover is provided with a spring-loaded ball relief valve- 144 and is filled with a viscous preservative substance to permit the valve to be used in a pipe line 24 submerged in sea water or corrosive vapour. To operate the valve, the cover is removed and a hand wheel is mounted on the shaft 86 which is coupled by bevel gears 92, 82 to a nut 64 mounted in thrust bearings 66, 68. The nut engages a screwed portion on the valve spindle 40 which has a packing chamber 52 pressurized with grease or a plastic substance through a fitting 54. 0-ring seals are provided between the tubular member and the housing and collar and between the latter and the shaft 86.
Patent GB-1225115-A (GB)
IPC: G02B6/06
Filed: 1967-07-24
Abstract: 1,225,115. Fibre optics. JOSEPH LUCAS (INDUSTRIES) Ltd. June 21, 1968 [July 24, 1967], No.33931/67. Heading G2J. Optical apparatus used to transmit light from two or more cables to a further optical cable comprises a block of transparent material 11 which has a first surface containing bores 13 to receive two or more optical cables and a second surface 16 to receive one optical cable; the boundary surface of the block and the medium surrounding providing total internal reflection of the light travelling in the block. The block 11 is made of transparent synthetic resin material and is formed with diametrically opposite parallel flat surfaces 12. The bores 13 are inclined towards one another and overlap to terminate into a single bore 14 having a flat surface 15. The narrow end of the block 11 is formed into a cylindrical portion 17 coaxial with the bore 14 and has a flat surface 16 parallel with surface 15. The surface of the block 11 between the surfaces 15 and 16 is highly polished and may be coated with a layer (not shown) of refractive index that will provide total internal reflection. Alternatively the block may be supported in a hermetically sealed enclosure so that air can be used as the surrounding media. In use a length of the cables (10a) (10b) Fig. 2, (not shown) are stripped to uncover the fibres which are coated with a transparent adhesive and urged along bores 13 until the ends of the fibres adhere to the surface 15. A length of a third cable (10c) Fig. 2, is stripped and inserted into a metal ferrule 18 which is crimped at one end to grip the cable. The portion 17 is then inserted into the other end of the ferrule until the fibre ends abut against surface 16 and a clear adhesive is used to secure the fibres to the surface. Alternatively the cables may be secured to the block by synthetic resin welding techniques. In a modification the surface is provided with a reflective material such as aluminium.
Patent GB-1229021-A (GB)
IPC: C07C275/62
Filed: 1968-02-16
Abstract: 1,229,021. Compounds derived from biuret and alkali metal hydroxides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 27 Jan., 1969 [16 Feb., 1968], No. 7768/68. Heading C2C. [Also in Division A5] Reaction products comprising compounds of the empirical formula MC 2 N 2 H 3 O 3 , wherein M is sodium or potassium and hydroxides and carbonates of sodium or potassium are prepared by heating biuret with sodium or potassium hydroxide under anhydrous conditions. The alkali metal hydroxide and biuret may be mixed in powdered form and heated at 100 to 130 C. or heated together in an inert non-aqueous liquid organic reaction medium of sufficiently high boiling point to allow the reaction system to be heated or refluxed at temperatures abover 95 C. at atmospheric pressure.
Patent GB-1229161-A (GB)
IPC: B23Q3/157
Filed: 1969-04-01
Abstract: 1,229,161. Tool changers. MITSUBISHI JUKOGYO K.K. 1 April, 1969 [1 April, 1968], No. 17069/69. Heading B3B. An automatic tool changing mechanism comprises a horizontal guide beam 10 along which a carriage 8 moves between a tool magazine 2 and a spindle 3 of a machine tool. Suspended from the carriage is a frame support 6 which is movable horizontally perpendicular to the beam 10 by means of an hydraulic jack 7, 14 and guides 9. On the frame support 6 are two transfer members 5A and 5B which are movable vertically by means of hydraulic jacks 17, 18. Each transfer member has tool gripping means 4A, 4B actuated hydraulically to open, and spring closed. The carriage 8 is moved by an hydraulic motor 13, a pinion 11 and rack 12.
Patent GB-1230400-A (GB)
IPC: C23C2/08
Filed: 1968-10-24
Abstract: 1,230,400. Coating with metals. SIEMENS A.G. Oct.24, 1968 [Oct.24, 1967], No.50615/68. Heading C7F. A heated surface 4 is coated with tin or a 60-40 Sn-Pb solder by passing it in grazing contact with the molten tin or solder contained in gauze-like, cylindrical holders 3 of e.g. Cr-Ni wire.
Patent GB-1231530-A (GB)
IPC: A61M31/00
Filed: 1969-12-29
Abstract: 1,231,530. Irradiation apparatus. K. SAVERWEIN. 29 Dec., 1969 [5 Sept., 1969], No. 63084/69. Heading H5R. In apparatus for transferring a capsule 3 between a shielding block 2 and the closed end of a hollow probe 5 introduced into an opening in the body of a human or animal patient, the capsule 3 is fixed to one end of a flexible cable 7, and the other end of the cable 7 extends out of the shielding block 2, around most of the periphery of a driving wheel 10 against which it is pressed by a number of spring loaded rollers (11),  Fig. 2 (not shown), and through a storage tube 8 to a stop plate 9. The storage tube 8 extends between the housings of two photo-electric cell assemblies 12, 13 which detect the movement of the rear end 7a of the cable and which respond by controlling the movements of the driving wheel 10. The distance along the length of the cable 7 between the photo-cells is equal to the distance travelled by the capsule 3 from the centre of block 2 through the delivery tube 4 to the end of the probe 5. Preferably the length of the cable 7 is slightly in excess of the distance between the closed end of the probe and the photo-cell 12 to allow the cable to flex slightly. The capsule 3 may be brazed to the reduced diameter end of cable 7, which may comprise a core of one or more coiled wires and a sheath also of coiled wire, and the cable 7 and capsule 3 preferably have the same diameter and crosssection. The periphery of the driving wheel 10 may be covered with a layer of frictional material which is electrically insulated from the driving wheel shaft. The cable passage may be enlarged in diameter at transitions between one part of the apparatus and another and in the shielding block the passage between the central position of the capsule and the delivery opening 1b changes direction a number of times and is enlarged in diameter at least at the bends to allow free passage for the capsule and cable. The photo-electric assemblies may each comprise two light sources and two photo-cells, the beams crossing each other on the same cross-section of the cable path.
Patent GB-1232892-A (GB)
IPC: G06K7/10
Filed: 1969-04-28
Abstract: 1,232,892. Sensing records. E. SICK. 28 April, 1969 [26 April, 1968], No. 21641/69. Heading G4M. Narrow code marks of width E with a space on each side of width at least 2E, and wide code marks of width 3E are sensed by illuminating an area of width 4E and imaging this area on 4 photo-detectors whose outputs are connected in pairs to 3 differential amplifiers providing inputs to 2 gates which produce outputs corresponding to wide and narrow marks. The outputs from both gates may be combined to provide timing signals. An optical system employing mirrors, lenses and a beam splitter for illuminating the code area and projecting an image thereof on to the detectors, is described.
Patent GB-1238782-A (GB)
IPC: C04B41/00
Filed: 1969-07-10
Abstract: 1,238,782. lon exchange in glass; treating ceramics. S. S. KISTLER. 10 July, 1969 [10 July, 1968], No. 34797/69. Headings C1J and C1M. A first type of positive ion in a glass or ceramic material is replaced by a second type of positive ion by placing two opposite surfaces of the material in contact with a liquid bath containing said second type of ion, and establishing an alternating current across the material, which is maintained electrically conductive but not molten, the concentration of said second ion in the bath being maintained higher than that of the first. The process is preferably at less than 250‹ C., the current being alternated at intervals of 5 seconds to 60 minutes. Alkali metal ions in the glass (or ceramic), e.g. Li or Na, may be replaced by larger alkali metal ions, e.g. Na, K, Rb or Cs, to effect ion exchange strengthening, or by hydrogen ions to effect dealkalization. Alternatively, ions other than alkali or alkaline earth metals may be introduced so as to effect " cementation," e.g. so as to colour the surface. In examples, glass (two examples of compositions given) is treated with molten KSCN or a KNO 3 /Ca(NO 3 ) 2  mixture, or with a solution of KSCN in, e.g. acetamide, dimethylformamide, diethyl acetamide or propylene carbonate. Porcelain made by firing at 1200‹ C. 35 (weight) per cent ball clay, 35% sodium feldspar and 30% quartz may be treated with molten eutectic mixture of KNO 3  and Ca(NO 3 ) 2 . In a modification of the process each opposite surface of the material may be treated with a bath containing a different second type of ion.
Patent GB-1239396-A (GB)
IPC: E02D29/12
Filed: 1967-11-22
Abstract: 1,239,396. Manholes. REDLAND PIPES Ltd. 21 Nov., 1968 [22 Nov., 1967], No. 53111/ 67. Heading E1C. [Also in Division F2] A manhole shaft comprises concrete sections 12 with interlocking rebated upper and lower ends grouted together with an interposed collar 16 having an upwardly-extending flange 20 between which and the upper concrete section grouting material is also applied. The collar may be of glass fibre reinforced plastics, metal or bitumenised asbestos, and the grouting material mortar, cement, plastics material, bitumastic compounds or a combination thereof. The collar may have radially-inwardly directed locating projections 24 and similar upwardly- or downwardly-extending projections 26 together with bonding holes 28. In an attractive collar embodiment (Fig. 4, not shown), the projections are replaced by four arcuate inwardlyextending lugs 31. Radial grooves may be formed in the upper surface of the collar to aid the flow of grouting material into the joint, and if a viscous grouting material is used, pressure may be applied by a heavy ring or heavy arcuate members on the surface of the grouting material.
Patent GB-1251908-A (GB)
IPC: B29D29/08
Filed: 1969-11-20
Abstract: 1,251,908. Moulding belts. CONTINENTAL GUMMI-WERKE A.G. 20 Nov., 1969 [26 Nov., 1968], No. 56809/69. Heading B5A. [Also in Division F2] A process for producing an endless toothed belt of rubber or rubber-like plastics material comprises the steps of forming toothed projections 2 on a blank strip 1, by grooving, applying the strip to a mould core 6 having depressions 7 which receive the teeth 2, joining the ends of the strip by butting or overlapping, applying a wire or cord-like reinforcing ply 9 on the outside of the strip, covering the ply with an outer layer 10 of an elastic protective material, and vulcanizing or polymerizing the assembly in a subsequent heat treatment. The teeth 2 may be moulded by passing a strip 1 between a smooth cylindrical roller 3 and an axially fluted roller 4. The teeth 2 may have a fabric cover 8 which is first wound round the mould core 6 and rolled into the depressions 7.
Patent GB-1252067-A (GB)
IPC: B67D1/02
Filed: 1969-03-21
Abstract: 1,252,067. Automatic record change. RCA CORPORATION. 21 March, 1969 [1 April, 1968], No. 14951/69. Heading G5R. In an automatic record changer in which a slide 96 is reciprocated towards and then away from the turntable centre once during each change cycle, the slide is deflected sideways during the change following the playing of the last.record to operate switch off means. The auto change cycle is automatically triggered when tone arm lever 80 via rod 94 rotates arm 90 so that clutch coupled lever 92 engages trip pawl 88 and moves it, as the stylus enters the record run out groove, into contact with pin 52 on:the turntable drive shaft whereby the usual cam disc 54 is rotated into engagement with its drive gear 50. This operation can be initiated manually by selector 132 which moves a depending ear 158 on control lever 134 into contact with the trip pawl. As the cam disc rotates a pin 106 on-the disc engaged in a slot 108 on the slide 96 reciprocates it towards and away from the turntable centre when the normal record change sequence is carried out. When the last record has been played a stabilizer arm drops and its support shaft 44 moves into the path of a sloping shoulder on the slide. During the next change the slide is deflected against the action of spring 166 by the shaft 44 and engages and moves a lever: 138 which in turn moves control lever 134 off a first stop 156 whereby the lever is moved by spring 150 into contact with a second stop 154. This latter movement actuates switch mover 130 to its off position.
Patent GB-1256619-A (GB)
IPC: B65H63/02
Filed: 1969-07-17
Abstract: 1,256,619. Knotting yarns during winding. SCHWEITER ENG. WORKS Ltd. 17 July, 1969 [18 July, 1968], No. 36192/69. Heading D1J. Each winding station of an automatic winding machine has a device for repairing yarn breakages comprising suction nozzles for locating, taking up and drawing in the yarn ends from supply and take-up bobbins to an automatic breakage correction device, and checking means for ensuring that both yarn ends are satisfactorily drawn in, the checking means being associated with deflection means for moving the yarn ends into engagement with the checking means. Repetition of the complete knotting cycle can thus be avoided when the yarn ends have not been satisfactorily drawn in. In Fig. 1, the suction nozzles 1, 5 are pivoted on links 8, 80 to approach the packages on detection of yarn breakage. They are then withdrawn, during which motion a cam 16 deflects an arm 12, pushing the yarns into notches 11 in a checking device 10. In Fig. 2, the nozzles are themselves pivoted during withdrawal, by means of push-rod 8' and notch 22, again engaging the yarns momentarily with the checking device.
Patent GB-1267122-A (GB)
IPC: B66F9/14
Filed: 1970-04-14
Abstract: 1,267,122. Side shift mechanism for fork lift trucks. BYGG-OCH TRANSPORTEKONOMI A.B. 14 April, 1970 [6 June, 1969], No. 17722/70. Heading B8H. Lateral guiding means for the fork arms 5a, 5b of a fork lift truck comprises supporting pegs 2a, 2b mounted on a vertically movable attachment 1 on each of which a tube 3a, 3b is slidably mounted and a guiding collar 4a, 4b is slidable on each of the tubes 3a, 3b, the fork arms being attached to the collars 4a, 4b. A two-way hydraulic ram 6 is connected to the collar 4a via pistonrod 7 and link 8 and moves the collar towards and away from the attachment 1, the collar 4b moving simultaneously by means of racks 9a, 9b and a toothed wheel (10), Fig. 2 (not shown). During outward movement the collars 4a, 4b move the tubes 3a, 3b by means of abutments (16) on their ends. When the collars 4a, 4b are retracted by means of the piston 7 the tubes 3a, 3b are also retracted by means of an hydraulic cylinder (13) and rod (15), Fig. 5 (not shown), in the hollow pegs 2a, 2b and tubes 3a, 3b which is connected to the same compressed-medium system as the cylinder 6. In the fully retracted state of the fork arms 5a, 5b, Fig. 4 (not shown), the lengths of the tubes 3a, 3b are such that they do not project to any great extent beyond the sides of the truck. To prevent rotation of the tubular system 2a-4a under loads on the forks, splines (20), Fig. 5 (not shown), are provided in grooves (21) between adjacent tubes and collars or alternatively the said pegs, tubes and collars may have partially non-circular cross-sectional shape, thus preventing their relative rotation.
Patent GB-1288223-A (GB)
IPC: B08B3/02
Filed: 1969-08-19
Abstract: 1288223 Cleaning metal floors LIVERPOOL PATENTS CO Ltd 18 Nov 1970 [19 Aug 1969] 41308/69 Heading F2N An apparatus for descaling metal floors comprises a powered interchangeable rotary descaling tool 15 mounted in a housing 16 on a wheeled or rollered chassis 18, means being provided to deluge the tool with water whenever it is operating to obviate the risk of ignition of inflammable vapours. In the form shown a rotary hammer is driven by one or more Pelton wheels 2 mounted on the chassis, the exhaust water being directed by plate 21 to cascade on to the tool. A further water spray 13 is supplied via pipe 6 which is connected to a common supply for driving the wheel(s) 2 via jets la so that the spray 13 operates before the Pelton wheel(s) become operative. The housing 16 is attached to the chassis via rubber blocks or springs 24. The water deluge also reduces noise and serves to lay any dust created.
Patent GB-1288872-A (GB)
IPC: C21C7/064
Filed: 1970-04-20
Abstract: 1288872 Desulphurizing ferrous metals FOSECO INTERNATIONAL Ltd 19 April 1971 [20 April 1970] 18693/70 Headings C7D and C7M To the molten metal there is added a non- exothermic composition comprising lime, fluorspar and sodium carbonate, the mixture having a chloride content not exceeding 0À25%. The composition may contain 40-80% of lime, while a preferred composition is lime 45-65 parts fluorspar 25-35 sodium carbonate 10-30 parts. The addition may be made to metal in the ladle prior to teeming.
Patent GB-1290240-A (GB)
IPC: H01J37/14
Filed: 1970-06-10
Abstract: 1290240 Electron beam electromagnetic focusing apparatus HITACHI Ltd 10 June 1970 [13 June 1969] 28237/70 Heading H1D A magnetic electron lens suitable for an electron microscope comprising polepieces 4 and 5 within an exciting coil 1<SP>1</SP> enclosed within a peripheral iron cover 1 and upper and lower magnetic path units 2 and 3 respectively has an adjustable magnetic piece 8, e.g. ferromagnetic in contact with the lower magnetic path unit 3 to centre the beam by compensating for effects of magnetic flux leakage. The polepieces are separated by a non-magnetic spacer 5<SP>1</SP> and the annular compensating piece 8 provides a path parallel to the magnetic path unit 3 for the magnetic flux B. Various alternative embodiments are given. In Fig. 3 (not shown) air gap (9) in unit 3 ensures most flux passes through compensator (10); in Fig. 4 (not shown), compensator (11) has a structure extending below as well as above unit 3 to prevent outward flow of flux in the air gap; and in Fig. 5 (not shown) the coil bobbin has an inner wall of non-magnetic material A 3  adjacent the polepieces and upper and lower portions of ferromagnetic material A 1 , A 2 , where the lower portion is adjustable by screws 7. Fig. 6 (not shown) discloses a further construction wherein a portion only of the lower surface of compensator (12) contacts unit 3.
Patent GB-1297168-A (GB)
IPC: C07F7/18
Filed: 1970-07-28
Abstract: 1297168 Mercaptoalkyl alkoxysilanes DOW CORNING CORP 28 July 1970 [4 Aug 1969 23 April 1970] 36389/70 Heading C3S Mercaptoalkyl alkoxysilanes of the formula HSR<SP>111</SP>SiR<SP>1</SP> x (OR) 3-x , wherein R<SP>111</SP> represents -CH 2 - or -CH 2 CH 2 -, R<SP>1</SP> represents a monovalent hydrocarbon radical free of aliphatic unsaturation or a radical R f CH 2 CH 2 -, R f  represents a perfluoroalkyl radical, R represents a C 1-6  alkyl or C 2-6  alkoxyalkyl radical, and x is 0, 1 or 2, are prepared by reacting a thiouronium salt of the formula Cl-(NR<SP>11</SP> 2 ) 2  <SP>+</SP>CSR<SP>111</SP>SiR<SP>1</SP> x (OR) 3-x  (wherein R<SP>11</SP> represents hydrogen or a methyl group) with ammonia in a monohydric alcohol solvent under essentially anhydrous conditions. The starting materials are obtainable by reacting the appropriate thiourea CS(NR<SP>11</SP> 2 ) 2  with a silane of the formula ClR<SP>111</SP>SiR<SP>1</SP> x (OR) 3-x . Examples describe the preparation ofmercaptomethyltrimethoxysilane and beta - mercaptoethylmethyldimethoxysilane.
Patent GB-1297218-A (GB)
IPC: F16L17/035
Filed: 1971-06-30
Abstract: 1297218 Pipe or hose couplings A G PETZETAKIS 30 June 1971 [31 Oct 1970 7 April 1971] 30522/71 Heading F2G A connector comprises connecting parts 1, 2 attached to the ends of pipes, hoses or tubes L, each part having a sealing gasket 3 located in a groove 4. One connecting part 2 is received in a semi-cylindrical half-shell portion 6 of the other part 1 wherein a ridge 7 mates with a groove 8 and a movable encircling sleeve 5 locks the parts 1, 2 together. In one embodiment, as shown, one connecting part 2 is generally cylindrical and has an abutment ridge 9 which acts as a stop for the sleeve 5. The other part 1 also has a stop member 9. The sleeve 5, which is strengthened by collar portions 10, is retained in position by frictional engagement with the gaskets 3, and may have a side-branch apertured connector portion 11. In another embodiment, the connecting parts comprise similar semi-cylindrical half-shell portions (Figs. 5, 6, not shown), having mating grooves (15) (16) and collars (14) (17) (Fig. 6, not shown). A similar sleeve 5 having a branch outlet encircles the coupled half-shells, passage to the side branch being made through holes (18) in each half-shell. The connector parts 1, 2 maybe attached to the pipes L by welding, adhesive or as a push-fit and, together with the sleeve 5, may be made of injection moulded thermoplastics material.
Patent GB-1297718-A (GB)
IPC: A47C7/54
Filed: 1971-08-26
Abstract: 1297718 Adjustable armrests SWENSON CORP 26 Aug 1971 [3 Sept 1970] 40102/71 Heading A4J A pair of armrests AR are mounted on the backrest of a vehicle seat, e.g. a tractor seat, for pivotal movement about a horizontal axis 15a and about a vertical axis 16 such that the armrests can be pivoted from a horizontal forwardly facing position to a position behind the backrest where the armrests are inwardly directed toward one another. The armrest mounting comprises a horizontal L-shaped shaft 15 one arm 15a of which extends through one end of the armrest and a vertical shaft 16 integral with shaft 15 and pivotally mounted in a U-shaped bracket 10 attached to the backrest. The armrest is locked against movement about the vertical shaft 16 by the engagement of a pin on the bracket with a notch formed in a disc welded to the other arm of the L- shaped shaft 15, Figs.7 and 8 (not shown). The armrest is held in a horizontal forwardly facing position by the abutment of a pin 31 extending through a U-shaped member 30 rotatably mounted within the armrest on arm 15a with one end of a notch 32 formed in the periphery of a disc 33 welded to the arm 15a. Upward and then downward swinging of the armrest about the horizontal axis for an angle greater than 180 degrees is prevented by abutment of the pin 31 with the other end of the notch 32. The upper and E of the backrest is supported on a rod 61 to the ends of which are welded tubular collars 62, 63 which are slideably mounted on and in frictional engagement with sleeves 64, 65 carried by the vertical shafts 16.